Machine for operating on welting



July 21, 1931. J. GOULDBOURN ET AL 1,815,471

MACHINE FOR OPERATING N W ELTING Original Filed April 22, 1921 2 Sheets-Sheet l 4 51 Q w 0 o I {g 17'' Q Q? J7 J 7 Zr 19 g H J05 O @Q 49 y 21, 1 J. GOULDBOURN ETAL 1,815,471

MACHINE FOR OPERATING ON WELTING Original Filed April 22, 1921 2 Sheets-Sheet 2 Patented July 21, 1931 PIA-TENT: oFFicE'i JOSEPHQGOULDBOURN AND.-.REG IIiTALD BQYDYWOODCOCK HOF LEICESTER, ENGLAND,

ASSIGNORSLTQ UNITED". SHOE MACHINERY i CORPORATION, OF PATERSON, NEW JERSEYJA.LIORPOIEhA'JIIOINrOI.- NEW JERSEY V MACHINE; FOR. "OPERATING N 'WELTING Applrcation'fild Aprfl" 22; -1921',' Serial 1101463573, and; in Great Britain July ranuar ia, 1929.

Ifi zthezmraaanfacturetof: zwel-ted boots andshbesgr itiis'zscustomary toabeat :Ollll :the Welt aftertheavelt has-been :seoured to the upper and "insole-g: inrorde'r to cause: it to lie fiat in a:rsubstantially tlreeplainef theinsole.v As the;

sidewise deflectionmfzthez weltin applying it atath time thatzit isnbei-ngcsewed tomthe 'uppeniand cinsolef:.-rand;i-aaccordingly, it has been proposedztotapply a aveltislashing mechanism tOAlllIe ewelt sewing anachinenin such a :manwi her Lthatitheravvelt: may beslashedv in: advance ofthestitchliforming devicesr In order that such i'WBltslashing: mechanism shall require butzia minimum amount iofucarerrand atten tion TOH'FtlIB .partiof the operator; it has been 13;; proposed Ltd: s0 iconstnuetritheazwelt" slashing niechanisnr thatiwhen thrown-into operation it vtwill 'formiaa rapredetermined Y number of slashmin the iweltzandithemzcease to act duringtheicontinuationrof the sewingsand until arage-in atlnto'wnn into; operation. Different classesmf WOTlQshOWGVQI5KIBqulI'B a different 5 part of the counting mechanism. such iprlor. mechanisms haveno pIOV1S10I1 for 1' numbeieofi slashes to- -b'e madeainrthe welt and thuisiwarying therslashingnpe'rationa Accordingly; anzobfiectrofa the presentiin 4 vention risto improve mechanisms of this'typ'e foraoperatinguon fa weltrqoarticulatly with "a vieiw iof overcoming.fisher/disadvantage:above descrihedcofi said prior constructions. 1:

in a machine. empldyed-inthe manufacture of: 1

shoesrhauirig rweltrattachingrmeans of/ mech anism fo'ruopaeratiirg; .tonuther iweltfflll :advance throwingizszdd'smechanisnrroutrof operation at'ithetconipletioniofia predeterminedperiod step :by tllGz'tlWl 9. ingrdthe timing-devices to: vary the lengthofofoperationetheneofc and means for :adj ustm suchtperiod bfmperatiorrrobsaid mechanism.

=2 Withrthismbject in viewa ife'atu're'aof the- 21, 1920. Renewed While this feature of the invention in its preferred form' is particularly adapted for: use in a weltslashing mechanism for a Goodyear welt'shoesewing machine, it isto be undelrstoodthatyexcept as defined in the claims,"

thisfeature of the invention is notlimited to'such' ESQ-21S, obviously, it may include othershoe machines having welt attaching means and also mechanisms other than welt slashing mechanisms for operatingon a welt' inadv'ance of-the welt attachingmeans.

Other features of the present invention consist in certain constructions arrangements and combinations of parts hereinafter described and- -claimed, the advantages of which will beobvious to those skilled in the art.

The several features of the invention will. be clearly understood from the following description and-accompanying drawings, in which:

Figure 1 is-a perspective view of part of a a Patent No. 1,108,560, dated August 25,1914,

showing a preferred form of welt-slashing mechanism :in an operative position. a

Figurefl 1s a side elevation, partly broken away, of the welt-slashing and counting" -HIGChflHlSHl in inoperative position.

actuated inthe manner illustrated and: de

'welt sewing machine of the type disclosed in scribed in the patent hereinbeforc referred to, beingsupportedon one end of a semicircularoarm 5 of radius greater than:the' curved hooked needle andpivoted eccentri-q cally to the needle; The welt guide receives the twelt strip passing to it about the usual, drum: 61 0f the welt 'measuring mechanism and positions it as is well understood while:

'ritisbeingsecured'to theshoe by the agency of: :th'e attacinnganneansgi timing devices. :for

The welt'guide is extended 'rearwardlytd form a guideway '10 forthe knife bar 11 on gauge: 8 and fed step by the forward end of which is formed the knife 12. The knife is reciprocated in the welt guide by a link 13, one end of which is pivotally connected at 15 to a block 17 which is clamped on the knife bar and which slides in the guideway 10. The link is connected at its other end to the upper end. of a vertically disposed lever 19 pivoted to a bracket 21 fast on the machine frame. The lower end of this lever has pivotally connected to it at 23 one end of a link 25, the opposite end of which is pivotally connected at 27 to the lower end of a lever 29. This lever is pivotally connected at its upper end to one arm of a cam lever 31 pivoted on the machine frame and operated by a cam which has been cut in the cam disc in which is already provided the cam 35 for moving the channel guide 3'? to and from the work through the agency of the lever 39 and the customary associated mechanism. The lever 29 has a. downward extension 41 at its lower end which guided between a face formed on a bracket 43 fixed to the machine frame and a plate 45 screwed to the bracket. The lever 29 has near the centre of its length a roll. 47 which, when the slashing mechanism is in operation, is confined between the end of a plate l9 fast on the bracket :3 and the end of one arm 51 of a bell-crank lever pivoted on the bracket 43. the lever 29 then moving about the axis of the roll 47. hen the end of the lever arm 51 is moved away from the roll the lever 29 rocks idly about its pivotal connection 27 to the link 25 and the slashing knife is out of operation. The slashing knife when out. of operation is held rearwardly out of the welt guide by a spring 53 fastened at one end to the link 25 and at the other end to a pin fixed in the machine frame. The lever arm 51 has formed on one side a lug which when the slashing mechanism is out of action rests on a second lug 57 formed on a vertically disposed arm 59 of a second bell-crank lever also pivoted on the bracket. The other arm 61 of the second bell-crank le er is connected by a rod 63 to a knee lever. A spring 65 tl e ends of which are connected to the arm 51 of the first bellcrank lever and to the arm 61 of the second. bell-crank lever, respectively. acts to move the arm 51 into position where its end engages the roll 47 when the kneelever is pressed by the operator and also tent s to return the second bell-crank lever when the knee-lever is released. hen the arm 51 of the first bell-crank lever is thus engaged with the roll 47 the second bell-crank lever is prevented from returning to normal inoperative position upon releasing the knee lever, by the engagement of a side of the lug 57 with the lug The second bell-crank lever is permitted to be returned by the spring 65 to its normal inoperative position when the arm 51 of the first bell-crank lever is swung upwardly away from the roll 4;? by

means hereinafter described, such movement of the arm 51 causing the lug to be raised out of engagement with the side of the lug 57. The arm 51 of the lirst bell-crank lever has on it a face 67 which engages a stop face 69 on the bracket 43 when the arm is released to engage the roll. The lever 19 has pivotally connected to it near its lower end, one end of a connecting rod 71 which operates the counting and throw-out mechanism. The

other end of this red is pivotally connected to a lever 73 fulcrumcd on a horizontal shaft 75 which is supported in the bracket 43 aforementioned. T he lever carries a pawl 77 which is held by a spring 7 9 in engagement witi a ratchet wheel 81. A second pawl 83 pivoted on the bracket and yieldingly held in engagement with the. ratchet wheel, prevents return movement of the ratchet; wheel. The. ratchet wheel is mounted on a sleeve portion 85 of a cylindrical member 87 and is pinned to the member. The member is rotatably mounted on the shaft 7 5 and is rece ed to receive a clock spring 89 one end which is connected to the cylindrical mem her and the other end to a pin 91 which projects into the recess from a disc 93 which is also rotatably mounted on the shaft. The disc 93 has notches 95 in its periphery, the number of notches coinciding with the number of teeth in the ratchet wheel 81. The disc 93 is held in any desired position, for the purpose, as will hereinafter be described, of determining the number of slashes to be cut, by a latch 97 pivoted on the bracket and held in engagement with one or the other of the notches in the disc by a springpressed plunger 99 mounted in the bracket. The disc 93 has extending from its side adjacent the cylindrical member a stop lug 101 against which a projection 103 on the cylindrical member is held by the clock-spring 89 when the slashing mechanism is out of action. The member 87 and with it the projection 103 are rotated during slashing, the space of one tooth for each out until, after the desired miniber of slashes have been cut, the projection 103 encounters the other arm 105 of the first mentioned bell-crank lever and turns this lever about its pivot to remove the end of its arm 51 away from the roll 4,? on the lever 29 which then rocks idly on its lower pivot, the slashing mechanism thus being thrown out of action. The arm 59 is so formed at its upper end that when the knee lever is released the return of the bell-crank by its spring releases the pawls 77, 83 from the ratchet wheel and allows the clockspring to return the cylindrical member until the projection 103 encounters the stop lug 101 on the disc 93. The mechanism will then on the next actuation of the knee lever, cut the same number of slashes and be automatically thrown out of action. The notches in the disc are numbered to correet-arr? spend with the number of slashes which will be cut for a particular setting of the disc and pointer 10? is provided on the bracket and index marks opposite the notches whereby the disc may be readily set to give a desired number ofslashes from one upwards.

In the construction herein detailed the movement of the ratchet wheel, cylindrical member and its projection 103 takes place during the return movement of the slashing knife, so that the throwing out of action of the slashing knife occurs after the last out is made thereby ensuring that the last out is fully and correctly effected.

It will be appreciated that the two bellcrank levers are to such a degree independentin their movements that should the operator still maintain the pressure on the knee lever at the time the projection 103 on the cylindrical member meets the arm 105 of the first bell-crank lever the free movement of the latter will not be interfered with and it will be necessary for the operator to release the knee lever before a second series of slashes can be effected.

Furthermore the notched disc can be set so that the projection 103 on the cylindrical member is holding the first bell-crank lever clear of the roll 47 with the result that movement of the knee lever will be without result on the knife actuating mechanism.

While the features described above are well adapted for use in the welt shoe sewing machine illustrated in the drawings, it is to be understood that, except as defined in the claims, certain features of the invention are not limited to use in a machine of this type, as they may be used in other machines for operating on welting, whether or not the welting is of the type used in Goodyear welt shoes.

The nature and scope of the present invention having been indicated and a machine.

embodying the several features of the invention in their preferred form having been specifically described, what is claimed is 1. A machine for operating on welting having, in combination, a welt slashing knife, mechanism for advancing and retracting the slashing knife across the welt to make slashes in the welt, timing devices acting automatically after a predetermined number of slashes have been made in the welt to throw said mechanism out of operation and means for actuating said devices during the retracting movement of the welt slashing knife.

2. A machine for operating on welting having, in combination, welt slashing mechan1sm, means comprising a controlling member rotating step by step in one direction during the operation of said mechanism for throwing said mechanism out of operation after a predetermined number of degrees of rotation of the controlling member, and

oscillate iaboutieitherof two axes, and means for controlling such oscillating movements:.-' of the lever to throw the welt slashing "meche. anism intoirand outiiof operation:

4. A machine v for operating on welting having, incombination, mechanism .for make.

ing a'ipredetermined rnumber 'of slashes in ia i Welt: when' "thrown 1 into operation, .devices' under thecontrol of the operatonforvthrowe" ing said mechanism into operation; .and-z means: capable ofwbeing adjusted by theop-i' erato'r t-o' prevent saidmechanism from-beingthrown into operation upon operationtof said? dcvicesrp 5. A machine for operatings-on-rwelting having, 1 in combination, welt slashing mechanism, devices under the control of the operator for throwing said mechanism into operation, and timing means for the welt slashing mechanism for controlling the number of slashes made in thewelt capable of being adjusted by the operator to prevent said mechanism from being thrown into operation, upon operation of said devices.

6. A machine for operating on welting having, in combination, welt slashing mechanism, means comprising a controlling memaer moving in one direction during the operation of said mechanism for throwing said mechanism out of operation after a predetermined movement of the controlling member, and means for moving the controlling member in the reverse direction to return the controlling memberto its initial position.

7. A machine for operating on welting havin g, in combination, welt slashing mechanism, means comprising acontrolling member moving in one direction during the operation of said mechanism for throwing said mechanism out of operation after a predetermined movement of the controlling member, means for moving the controlling member in the reversedirection to return the controlling member to its initial position, and an adjustable stop to determine the initial position of the controlling member.

8. A machine for operating on welting having, in combination, welt slashing mechanism, means comprising a controlling member moving during the operation of said mechanism for throwing said mechanism out of operation after a predetermined movement of the controlling member,'and means for moving the controlling member to its initial position after the welt slashingmechanism is thrown out of operation. 7 130;

You

9. A machine for operating on welting having, in combination, welt slashing mechanism, means comprising a controlling member moving during the operation of said mechanism for throwing said mechanism out of operation after a predetermined movement of the controlling member, means for moving the controlling member to its initial position after the welt slashing mechanism is thrown out of operation, and means for adjusting the initial position of the controlling member.

10. A machine for operating on welting having, in combination, welt slashing mechanism, a member operable by the operator and acting when moved by the operator during the operation of the machine to throw said mechanism into operation, and means acting automatically to throw said mechanism out of operation after a predetermined number of slashes have been made in the welt and while the member remains in the position to which it has been moved by the operator.

JOSEPH GOULDBOURN. REGINALD BOYD WOODCOCK. 

